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Brief tone discrimination by children with histories of early otitis media
J L Cranford1, N Thompson, E Hoyer
1Department of Communication Sciences and Disorders, East Carolina University, Greenville, NC 27858, USA.
Abstract:
Twelve children, ranging in age from 8.9 to 12.4 years, with histories of severe otitis media with effusion (OME) before age 3, were compared to age-matched cohorts in their ability to discriminate the frequency of tone pulses of 20-, 50-, and 200-msec duration. An adaptive procedure was used in combination with a two-alternative forced-choice paradigm to measure difference limens (DLs) for digitally generated 1000-Hz tones. The OME group exhibited larger DLs than the non-OME group at all three stimulus durations. These results provide tentative evidence of possible long-term effects of early OME on brief tone frequency discrimination.
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The Cochlea
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...